Hybrid Vision MCP Server
Bridges local vision engines (Tesseract.js OCR and Sharp preprocessing) with Ollama vision models for image analysis, comparison, text localization, and browser screenshot annotation over MCP-compliant HTTP/SSE transports.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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sameersemna
Source: Glama
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CORS_ORIGINS(empty = allow all) Comma-separated list of allowed CORS origins for the /upload endpoint.DOWNLOAD_DIR./tmp/hvm-downloads Directory for downloaded images from URLs (via download_image tool or transparent URL resolution).FEEDBACK_DIR/tmp/hvm-feedback Directory for saved output images (annotations, diffs, overlays).MAX_DOWNLOAD_SIZE_MB50 Maximum download size in megabytes for URL-based image downloads.MAX_UPLOAD_SIZE_MB20 Maximum upload size in megabytes.MCP_REQUEST_TIMEOUT_MS300000 Timeout for MCP client request/response in milliseconds. Heavy vision tools may exceed the default 60s SDK timeout; set this to match or exceed OLLAMA_TIMEOUT_MS.MCP_SERVER_URLOLLAMA_HOSTOllama running locally (or reachable via )OLLAMA_TIMEOUT_MS180000 Timeout for Ollama vision requests in milliseconds.UPLOAD_DIR/tmp/hvm-uploads Directory for temporary binary image uploads.UPLOAD_RATE_LIMIT10 Maximum upload requests per minute per client IP.VISION_MODEL_FASTllava:13b Default vision model for analyze_image and detect_ui_elements.VISION_MODEL_HEAVYqwen3-vl:30b Default vision model for find_text_element, compare_images, browser_screenshot_analysis, visual_diff, and detect_ui_elements.PORTTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
14/14 tools missing one or more hints — fast_ocr_tesseract (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); preprocess_and_crop (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); analyze_image (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +11 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
Shell command execution
9 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
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